can someone please give me a scientific answer to the question of what people did before mobile phones?

Answer 1

A scientific answer? Not sure what you mean, but...
Before cell phones, we used pay phones. Or we waited until we got home to call people. If we were in positions of responsibility (doctors, etc) we carried pagers. If someone needed us, they paged us, and we called them when we got to a phone.

Answer 2

Before mobile phones we were all forced to communicate to others from land lines or pay phones. Technology had not reached a point where everyone could afford a cell phone so land lines seemed more practical. We are now very accustomed to having cell phones on hand, now with complicated features like web surfing, phone cameras and video camera, email, text messaging etc.

I have no idea if this is what you want, hope it was a little helpful.

Answer 3

We waited until we found a pay phone or returned home to make calls.

Some business people had two-way radios in their vehicles. Two-way radios were too expensive for the average individual.

Answer 4

wrote letters to each other, used a cb, used a home phone ( sorry if NOT scientific, but that's all I could think of)

Answer 5

Smoke Signals
The need to communicate has driven much development in human history, and the need to communicate over distances too great to shout over has been just as important. From smoke signals to semaphore, from signposts to sending letters via messenger, we have discovered faster and more effective means of communicating. Still, it became more and more necessary to communicate instantly (as when a battalion of soldiers needed to move to help their compatriots, or a government needed to stop a war entirely), and so messengers were too slow; and to communicate over more than line-of-sight distances (again, a government, say the ancient Romans, trying to stop its troops from fighting is a good example, unless the troops are all stationed in the Senate chambers to begin with).

One solution was a chain of signals—either smoke, flags, or signal fires—and this was used for thousands of years all over the world. It did, however, still have drawbacks, including that it took only one failed signal in the chain (due to sleepy guards, wood too wet to light, or what-have-you) to make the whole thing an act of futility.

But how else does one communicate beyond the sound of one’s voice and the line of one’s sight?

Electricity
As seems to have happened with a lot of things in history, electricity was “discovered”—or at least static electricity was—and then “forgotten” and then “discovered” again. The ancient Greeks, perhaps as early as 600 BC, had learned that they could create a static charge on amber by rubbing it, and that this charge could attract small bits of paper and other extremely light objects. They most likely also found out that you could shock your nearest friend with a static spark, but nobody seems to have thought that important enough to write down for posterity.

Little was done with this knowledge until around 1600 AD, when William Gilbert, an English scientist, published “De magnete, magneticisique corporibus" or "On the Magnet," a treatise describing all of his experiments with what he called “electricity,” after the Greek word for amber. He talked about electric force, magnetic poles, electric attraction, and even the magnetic compass.

Lots of people became interested in static charges and electricity (and very soon were also interested in its relation to magnetism), and in fact it was discovered that electric impulses could be sent down a wire (as performed in 1729 by English chemist Stephen Gray). Still, the static electricity was fairly useless without some method of storing it, or of calling it up at will.

Mobile phones are the new garden fence

The space-age technology of mobile phones has allowed us to return to the more natural and humane communication patterns of pre-industrial society, when we lived in small, stable communities, and enjoyed frequent 'grooming talk' with a tightly integrated social network. In the fast-paced modern world, we had become severely restricted in both the quantity and quality of communication with our social network. Mobile gossip restores our sense of connection and community, and provides an antidote to the pressures and alienation of modern life. Mobiles are a 'social lifeline' in a fragmented and isolating world.

Answer 6

pay phone - not very scientific but neither is the question.

Answer 7

Yell across the street.

Answer 8

stayed on the house phone. if you never had it you don't miss it. you know what i mean. i could not live without my cell now

Answer 9

They used pagers and pay phones.